A finger flexor tendon injury is damage to the tissues that help the finger move. It can make it hard to bend the finger.

Healthy Flexor Tendons of the Hand
flexor tendon
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This injury is often caused by a cut to the finger, hand, or arm. Other causes are:

  • A sports injury:
    • Stretching the tendon too far in sports that use hand strength, such as rock climbing
    • Catching the finger on another player’s shirt (Jersey finger)
  • Weak flexor tendons from health problems, such as rheumatoid arthritis

Risk Factors

Things that may raise your chance of this injury are:

  • Playing certain sports, such as:
    • Rugby
    • Football
    • Wrestling
  • Having health problems that weaken flexor tendons, such as rheumatoid arthritis


Symptoms may be:

  • A cut on the palm side of your hand
  • Pain
  • Swelling
  • Problems bending one or more joints of a finger
  • Loss of feeling in a finger


The doctor will ask about your symptoms and health history. A physical exam will be done. The doctor will ask how the injury happened. The finger will be checked. A doctor who treats bones may need to look at it.


A splint will be needed to protect the finger. Other options are:


Antibiotics may be needed to treat or prevent infection.


Most people will need surgery to repair the tendon. Exercises will also be given to help with finger strength and motion.


This injury happens due to accidents. There are no guidelines to prevent it.

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